1873162890 has 24 divisors (see below), whose sum is σ = 4870223748. Its totient is φ = 499510080.

The previous prime is 1873162873. The next prime is 1873162927. The reversal of 1873162890 is 982613781.

1873162890 is a `hidden beast` number, since 18 + 7 + 3 + 1 + 628 + 9 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1718682849 + 154480041 = 41457^2 + 12429^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10406371 + ... + 10406550.

Almost surely, 2^1873162890 is an apocalyptic number.

1873162890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1873162890 is an abundant number, since it is smaller than the sum of its proper divisors (2997060858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1873162890 is a wasteful number, since it uses less digits than its factorization.

1873162890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20812934 (or 20812931 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 1873162890 is about 43280.0518715031. The cubic root of 1873162890 is about 1232.7031764199.

The spelling of 1873162890 in words is "one billion, eight hundred seventy-three million, one hundred sixty-two thousand, eight hundred ninety".